Sand pump



July 28, 1925. 1,547,285

'6. J. ARMSTRONG SANDPUMP' Filed June so. 1924 2 Sheets-Sheet 1 Ma i/iron July 28, 1925. 1,547,285

G. J. ARMSTRONG SAND PUMP Filed June 50. 1924 2 Sheets-Sheet 2 i Patented July 28, 1925.

"U T D; STATES SAND PUMP.

, Application filed June 30, 1924. Serial Re. 728,418.

To all whom it may concern:

Be it' known that I, ,Gnoncn J. ARM- STRONG, a citizen of the United States, and a resident of Burkburnett, in the county of Wichita and State of Texas, have invented new and useful Improvements in Sand Pumps; and I do declarethe following to be a full, clear, and exact descri tion of the invention, such as will enable ot ers skilled in the art to which it appertains to make andwuse the same.

The invention relates to sand pumps to be used in connection with producing oil wells for the purpose of removing sand from the at-hering reservoir of the well.

Tile chief object ofthe invention is-to provide a cutting and mixing member in combination with the lower valve. toagitate and mix the sand with the fluid so it will be more easily pumped into the pump barrel.

A further object is to provide a means of attaching the lowervalve'to the pump barrel enablin the same to be quickly attached or remov when emptying the barrel.

Further objects and advantages will be apparent as the invention is more fully disclosed.

With the foregoing in view the invention resides in the novel subject matter herein-. after described and claimed, the description being supplemented by the accompanyin% drawing, wherein, y

igure 1 is a central longitudinal sectional view.

Figure 2 is a 'side plan view of the cutting member and lower valve.

Figure 3 is a pers ctive view of the cutting member and va ve showing the locking member.

Figure 4 is a perspective view of the lock-.

member spring.

igure 5 is a si 0 plan view of the entire assembly. L Figure 6 .is a perspective view of the barrel bottom. i

Figure 7 is a perspective view 'of the valve and cutting member rtly sectioned to show a side view of the licking member.

Figure 8 is a perspective view of the looking member.

Figure 9 is a perspective view of a book used to release the locking member.

The invention comprises a tubular member 1, having a flat pointed cutting web 1 at the bottom, formmg a part thereof. 2 is a cover hinged to the top of the tubular I r 1,547,285, PATENT OFFICE.

'eaoadn .1. aimsraonc, or nunxnunnn'rr, TEXAS.

member 1 and seated thereon, forming a valve for thepurpose hereinafter described.

- 3 is a tubular-member which is riveted to the barrel 4, as shown at 4. The lower,

pum end iii the tubular member 3 is provided 5 with four longitudinal slots 3 having right angle circumferential slots at the termination thereof, as shown at 3". The. tubular member 1 is provided with four square bosses 1 substantially the same size as the slots 3 and 3 in the tubular member 3. 5 is a locking member pivoted in the tubular member 1, asshown. 6 is a spring for the.

purpose of holding the top of the locking member 5 in an outward position. Thus it will be noted that the tubular member 3, which is attached to the barrel 4 may be slipped over the tubular member 1 by placing the bosses 1 in the slots 3". When plac ing the tubular member 3 over the tubular member 1 it is necessary to'p'ress'the top of the locking member 5 inwardly even with the outer diameter of the tubular member 1. The. deposed portion 5' in the 30 locking member 5 provides a clearance for the lower end of the tubular member 3 when the locking member 5 is pressed inwardly for assembling. 5 is.a projection on the inner side of the locking member 5 to limit 35 the outward travel of the same. When the tubular member 3 has been placed over the tubular member 1, and 'the bosses l iare even with the circumferential slots 3", the

' tubular member 3 is then turned circum- 00' ferentially on the tubular member 1 until the locking member 5 is even with one of the slots 3 and the spring 6 forces the lockingmemb'er '5 therein, thereby holdi'ng'the tubular members 1 and 3 securely together.

Figure 9 illustrates a book which may be used to ressthe top of the locking member 5' inwar 1y by placlng the said hook'under the lower endof the said locking member and pulling outwardly. To remove the 1 tubular member 3 from the tubular member 1, the top of the locking member 5 is pressed.

inwardly and the tubular member 3' is turned circumferentially on the tubular member 1 until the bosses 1" are evenwith the longitudinal slots 3, the tubular memher 3 maythen be slipped longitudinally and removed from the tu ular member 1. The pump barrel 4 is of the well known desi aving the centrally apertured plunger dlsposed in the barrel 4. 9 is a plunger rod which is attached to the plunger 8 and ex- HEISSUED Y tending through the central aperature in the plug 7 having an apertured member 9 at the top thereof for the purpose of attaching a cable. 10 is a flange on the plunger rod 9., which presses against the lug 7 and supports the sand pump when t e same is being raised or lowered in a well. 11 is a centrally apertured disc slidably mounted on the plunger rod 9% between the flange 10 and the plunger 8.

In operation, the sand pump is lowered to the'bottom of a well and the cuttin web 1 is used to spud. and mix the san with the fluid. The sand is then pumped into the barrel 4 by raising the plunger 8. It will be noted that on the upward stroke of the plunger 8, the suction created therebelow will open the hinged valve 2 and suck the sand into the barrel 4, and when the barrel has filled with fluid and sand the suction will cease and the hinged valve 2 will close, thereby retaining the sand in the barrel, the sand pump is then raised to the surface and the hook, as shown in Figure 9, is placed under the lower end of the locking member 5 and pulled outwardly, thereby moving the upper portion of the locking member 5 inwardly out of the slot 3--. The tubular member 3 is then turned circumterentially on the tubular member 1, until the bosses 1 are even with the slots3, the

scription the nature, operation and advan tages will be readily apparent, I desire to indicate clearlythat I do not limit myself to the specific construction herein shown and described, and that such changes may be resorted to, when desired, as fall within the scope of what is herein claimed.

What I claim is:

In a sand ump in combination with a working barre and plunger; a slotted cylindrical member rigid upon the lower extremity of the said barrel; a valved cutting member having projections spaced around the periphery thereof and arranged to be inserted within the slots of 'said cylindrical member and having a stop shoulder; a spring pressed auxiliary locking lever on said cutting member having an upwardly extending finger engageable with the stop shoulder to have its outward movement restricted by the said shoulder, the lower end of the lever being formed to be gripped and moved outwardly to move the upper end of the lever inwardly thereby, to permit rotation of the locked members to efiect release thereof.

GEORGE J. ARMSTRONG. 

